Furniture base



FIG. 1 is a perspective view of a furniture base showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a first side view thereof;

FIG. 5 is a second side view thereof; and,

FIG. 6 is a third side view thereof.

The broken lines are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a furniture base, as shown and described. 